Basic Instructions
Follow the instructions provided in the cinematics and try to keep as many of your men alive as possible. You can rally civilians by moving your hero next to them (please note, only 'militant' women will fight for you, though others will still interact with you upon selection).
Make sure to upgrade your troops at the blacksmith and buy items at the market.
During the siege you may need to retreat to the town centre; the front gate may be overwhelmed but there are additional guards and towers to help with your final defense outside the town hall.
Throughout the map there are three secret characters that will aid in your defense, some easier to find than others. Finding all of them, keeping them alive and completing their bonus objectives may unlock various bonuses, including the true ending.
It is advisable to start by rallying all possible civilians, then targetting the kidnapping monsters and then moving into parish territory.